Navigate to Security > Firewalls > Next-Generation Firewalls (NGFW) > ASA 5500-X with FirePOWER Services > Model of ASA > Adaptive Security Appliance (ASA) Software Navigate to Security > Firewalls > Adaptive Security Appliace (ASA) > ASA Model > Software on Chassis > Adaptive Security Appliance (ASA) Software. Go to the downloads section of (requires Cisco login with valid support contract): The only time you need to do a stepped upgrade is when you’re upgrading from a very old version (pre 9.1) and want the config to be migrated for you. Because of this there usually isn’t a need to do a stepped upgrade. You download a whole new OS to be installed. There are no such things as patches or updates. ![]() The general suggestion is to run the latest version of ASA OS version that the ASA supports. To upgrade the OS of a Cisco ASA firewall follow these basic steps:
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